Delete item from nested array in Schema using moongoose

Question

I need help with removing this item from nested array. I tried used $http.delete but this method deleted whole ObjectID from database, and second problem is that I can't connect the click on the "removing" button with backend code.

My code:

var product = new Schema({
  title: String,
  price: String,
  description: [ObjectID]
});

Index.html

<form name="editProduct.descriptionForm" ng-submit="editProduct.updateDescription(newDescription, editProduct.descriptionForm.description.$valid)" novalidate>
  <div ng-class="{ 'has-success':(editProduct.descriptionForm.description.$valid && !editProduct.descriptionForm.description.$pristine), 'has-error':(!editProduct.descriptionForm.description.$valid && !editProduct.descriptionForm.description.$pristine) || (!descriptionForm.description.$valid && descriptionForm.$submitted) }">

    <div class="entry input-group" ng-repeat="item in newDescription track by $index">
      <strong><input ng-disabled="editProduct.disabled" class="form-control" type="text" name="description" ng-model="newDescription[$index]" required></strong>
      <span class="input-group-btn">
        <a ng-click="editProduct.deleteDescription(item);" class="btn btn-remove btn-danger">
            <span class="glyphicon glyphicon-remove"></span>
        </a>
      </span>
    </div>
  </div>
  <br>
  <button ng-disabled="editProduct.disabled" class="btn btn-primary" type="submit">Save</button>
</form>

routes.js

router.put('/editProduct', function(req, res){
  var editProduct = req.body._id;
  var options = { multi: true };
  Product.findOneAndUpdate({ _id: editProduct }, { $pull: { description: req.params.description }}, options, function(err, product){
    if(err) throw err;
    if(!product){
      res.json({ success: false, message: 'Product no found' });
    } else {
      product.update(function(err){
        if(err){
          console.log(err);
        } else {
          res.json({ success: true, message: 'Description removed!'})
        }
      });
    };
  });   
});

I also tried the following approach:

Product.findOne({'_id' : product.id}, function(err, me){
  for(var i=0; i<=me.description.length; i++){
    if (String(me.description[i])==String(uid)){
      me.description.remove(uid);
      me.save();                         
    }
  }    
});

I think, the biggest problem is that I don't how to connect this function to the button.

It looks terrible, but I think that problem is short, maybe someone be up against removing item from array click on <button> or <a> — Mat.Now
– Mat.Now, Commented Jul 18, 2017 at 10:30

nomanbinhussein · Accepted Answer · 2017-07-18 20:01:24Z

1

Please try console.log(req.params.description) Before the Mongoose update query and check if the output is indeed a valid ObjectId.

If the console output is not showing the valid uid, then the problem is in the angular code. Most probably in editProduct.deleteDescription(item) function. Check if you are making Http Request by passing the correct Description Id as the parameter. Thats probably something like item.descriptionId or item.id. Debug thoroughly.

answered Jul 18, 2017 at 20:01

nomanbinhussein

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1 Comment

Mat.Now Over a year ago

Everything seems works good, but I got message "Product no found"

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